Carton



Uec. 17, 1957 w. P. FRANKENSTEIN CARTON 2 'sheets-sheet 1 y(ZI FiledJune 5, 1950 Dec. 17, 1957 w. P. FRANKENSTEIN CARTON 2 Sheets-Sheet 2Filed June 5, 1950 INVENTOIL` f 1 WILLIAM' l? FkAukE/vssm Troefvsy nitedStates Patent O CARTON William P. Frankenstein, Cincinnati, OhioApplication June 5, 1950, Serial No. 166,207

Claims. (Cl. 229-34) This invention relates to improvements in cartons,and particularly to improvements in knock-down cartons, in which theerected carton is provided with an extending ilange from each of thefour walls thereof. The invention relates equally to improvements inlids or covers for cartons or boxes and which lid or cover is providedwith a fiange at the upper ends of the walls.

The disclosure in this application is an improvement on that inapplicants pending application for Carton, Serial No. 592,371, and whichwasiiled on May 7, 1945, now Patent No. 2,514,384, the disclosure inthis application accomplishing, in the main, the objects accomplished bythe foregoing identified application.

The broad idea of a carton, box, cover or lid having an extending angein the plane of the panel of the carton or box bottom and the lid orcover covering panel is known, particularly, in the art of set-up boxes.By set-up boxes is meant boxes or cartons which have the walls thereofpermanently positioned with respect to the bottom panel and are soformed by the manufacturer for shipment to a user. As was noted above,this application discloses a carton, box, cover or lid which is producedby the manufacturer in a knock-down condition, that is, with the wallsfolded at for subsequent erection by the user and which erected cartonpart has the projecting ange from each wall. In the above identiedapplication certain of the walls have the flange permanently formed bythe manufacturer While the flange of the other walls are formed uponerecting the carton and the parts of the flange are held in operativerelation by the cooperation of the parts of the permanently attachedwalls. By the construction disclosed in this application the anges fromeach wall are permanently provided for by the manufacturer.

It is, therefore, the principal object of the present invention toprovide a knocked-down carton part, that is, the carton or box properand/ or a lid or cover, from each wall of which projects a ange whichwas permanently provided for during the formation of the carton in itsknocked-down condition.

Another object of this invention is the provision of a carton part thatis produced in its knocked-down condi-V tion to take up a minimum amountof area prior to erection as a full size carton, box, cover or lid.

A further object of this invention is the provision of a carton partwhich will accomplish each of the foregoing objects and may have eitherspaced apart or hollow walls or walls of a single or double thickness ateach side thereof or some of the walls may be formed of hollow spacedapart members while the others are of single or double thickness.

Specifically, it is also an object of this invention to improve theconstruction shown in applicants previously issued Patent Re. 21,158 toprovide the car-ton of said previously issued patent with flangesoutwardly of the walls thereof in the plane of the carton bottom,

Other objects and advantages of the present invention should be readilyapparent by reference to the following ICC specification considered inconjunction with the accompanying drawings forming a part thereof and itis to be understood that any modifications may be made in the exactstructural details there shown and described, within the scope of theappended claims, without departing from or exceeding the spirit of theinvention.

In the drawings:

Fig. l is a plan view ofa blank partially folded from which a carton ofthe present invention may be erected.

Fig. 2 is a transverse sectional view through a completely folded cartonblank showing the same in the condition in which it is shipped to auser.

Fig. 3 is a perspective view of a partially erected carton at anearlystage of erection.

Fig. 4 is a perspective viewl of a partially erected carton at a furtherstage of erection from that of Fig. 3.

Fig. 5 is a transversel sectional view through a fully erected carton asseen from line 5 5 on Fig. 4.

Fig. 6 is a plan view, similar to Fig. l, of a blank showingmodifications therein for producing a carton having hollow or spacedapart walls, said blank in Fig. 6 being partially folded.

Fig. 7 is a transverse sectional view through a completely folded orknocked-down carton showing the same in the condition in which it isshipped to the user.

Fig. 8 is a perspective view of a partially erected carton from theblank of Fig. 6 with said erection being at an early stage.

Fig. 9 is a perspective view of a partially erected carton at a stagelater than that of Fig. 8.

Fig. l0 is a transverse sectional view of a fully erected carton as seenfrom line 10-l0 on Fig. 9.

Fig. ll is an end elevational view of a fully erected carton from theblank of Fig. 6.

Throughout the several views of the drawings similar reference4characters are employed to denote the same or similary parts.

As will be noted from the drawings and particularly from Figs. 5` and l0the modification disclosed in Figs. 1 to 5, inclusive, is of a carton,box, lid or cover in which the walls are of double thickness while themodification illustrated in Figs. 6 to 11, inclusive, discloses the samecarton, box, lid or cover with the walls of hollow formation or withspaced inner and outer wall members. In general, it is probable that thehollow wall construction would be used for the box proper while thedouble thickness wall construction would be employed as a lid, alsothere are numerous instances where both the box proper and lid would beemployed with each of the double wall thickness construction. Since bothmodifications are quite similar in their elements the form in Figs. 1 to5, inclusive, will be rst described in detail and the other modificationwill be described insofar as the modications existing therein areconcerned.

Accordingly, the blank of Fig. l comprises a main or bottom panel l5bounded by score orl f old lines 16, 17, 18 and 19 of which score orfold lines 16 and 18 form the sides while the score or fold lines 17 and19 form the ends of the said main or bottom panel. it is to be under.stood that this nomenclature is used for explanation only since theterms sides and ends are interchangeable depending upon which are thelonger with respect to the others. The score or fold lines 16 and 18respectively, hingedly, connect with the bottom panel l5 similar extensions 20 and 21 which in the erected carton form the` side walls.Similarly the score or fold lines 17 and 19, respectively, hingedly,connect with the bottom 15 similar extensions 22 and 23 which in theerected carton form the end walls.

Since the side wall extensions 20 and 2l are substantially identical inall respects it is deemed suicient if but one. of. them be described indetail, extension 2t?, for example. The said extension is providedbetween its hinging score or fold line 16 and the end of the extensionwith a plurality of score or fold lines 24, and 26 forming in saidextension panels 27, 28, 29 and 30. In the erected carton the panel 27forms a part of the extending flange and for ornamental effect, as seenin Figs. 3 and 4, has its ends inclined or biased as at 31 and 32. Itshould be noted that these ends may take any desired contour or may beleft to the full length of the carton bottom or cut off to the length ofthe adjacent panel 28. in the erected carton the panel 2S forms the sidewall outer wall member and is of a length of the carton without theextending flanges and is therefore less than the length of the cartonbottom and has its ends defined by score or fold lines 33 and 34. Thesaid score or fold lines 33 and 34, respectively, integrally, hingedly,connect to the panel ends tucking flaps 35 and 36. In the erected cartonthe panel 29 forms the side wall inner wall member, and to all intentsand purposes, is of the same length as the panel 28 having its ends inpart formed by score or fold lines 37 and 38 and in part formed by cutlines 39 and 40. The cut lines 39 and 4i) are inwardly of the score orfold lines 37 and 33 thereby providing shoulders 41 and 42 which, aswill later be made clear, form part of the locking mechanism for lockingthe carton walls in erected positions. The inner wall member or panel 29has integrally, hingedly, connected to its ends, respectively, throughthe score or fold lines 37 and 38 tucking flaps 43 and 44. The remainingpanel forms a glue flap for securing the lower end of the inner wallmember or panel 29 to the main or bottom panel 15.

End wall flaps 22 and 23 being substantially identical in all essentialrespects, it is deemed sufficient if but one of them be described indetail. Accordingly, extension 22 is provided between its score or foldline 17 and the end thereof with a plurality of substantially parallelscore or fold lines 45, 46 and 47 which, in the main, form end wallextension panels 48, 49, 50 and S1. It will be noted that the extension22, in the main, is of a length equal to the width of the bottom panel15 as determined between the score or fold lines 16 and 18 while thescore or fold lines 45, 46 and 47 are of less length, thereby, providingthe panel 48 with end members or arms 52 and 53 that fiank the ends ofthe panel 49 and part of the ends of the panel 50. The ends of the panel49 are defined by cut lines 54 and 55 thereby making a completeseparation of the said panel 49 from the arms 52 and 53 and which panel49 in the erected carton forms the end wall outer wall member'. Theportion of the panel 50 that is flanked by the arms 52 and 53 aredefined by cut and score lines or lines of perforations 56 and 57 whichare readily tearable for a purpose that will presently be made clear.Beyond the arms 52 and 53, the ends of the panel 50 are outwardly formedto provide lugs 58 and 59 which are subsequently used in cooperationwith the indented shoulders, 39-41 and 4042, of the side wall inner wallmembers in locking the parts in erected positions. The remaining panel51 is utilized as an additional friction lock or Creeper in holding theend walls wall members in erected position.

After the blank has died out as above set forth the carton main orbottom panel 15 is provided in its corners for an area substantiallyequal to that of the arms 52 and 53 with adhesive, illustrated in thelower right-hand corner of Fig. l and indicated by the reference numeral60, whereupon the end wall extensions 22 and 23 are folded to theposition illustrated by the extension 23 at the left-hand end of Fig. 1.The adhesive 6) instead of being applied directly to the main or bottompanel 15 may be applied to the exposed surface of the arms 52 and 53while in the positions illustrated at the right-hand end of Fig. 1.After the said end wall extensions 22 and 23 have been folded onto themain or bottom panel 15, or prior to said folding, adhesive may beapplied to the now exposed surfaces of said arms 52 and 53 and whichadhesive is illustrated in the lower left-hand corner of Fig. 1 andindicated by the reference numeral 61. At this time the side wallextensions 20 and 21 are each folded on their score or fold line 25thereby bringing the outer ends of said extensions adjacent the score orfold lines, respectively, 16 and 1S after having applied to theundersurface, for a distance equal, at least, to the length of the endwall flange panel 43, of the glue flaps 30 adhesive 62 and 63 which isbrought into engagement with the flange forming panel 27. The foldedextensions 20 and 21 are now further and respectively folded on score orfold lines 16 and 18 onto the folded end wall extensions 22 and 23 intothe position illustrated by the side wall extension 21, thereby bringingthe glue aps 30 into contact with the end wall extension arms 52 and 53.

Pressure is now applied to the corners, at least, of the folded blankwhich adhesively secured the arms 52 and 53 to the main or bottom panel15, adhesively secures one face of the side walls glue aps 30 to theextension forming panel 27 and adhesively secures the other face of thesaid side walls glue flaps 30 to the arms 52 and 53 thereby uniting,adhesively, the parts to one another and permanently securing the sidewall extension flange forming panels 27 and end walls extension angeforming panels 48 in position. The blank is now in a knocked-downposition having each of its end walls extensions 22 and 23 folded to theposition of end wall extension 23 and its side wall extensions 20 and 21folded to the position of side wall extension 21 which would have atransverse cross section as illustrated in Fig. 2.

The user in desiring to set up the carton, box, lid or cover would firstraise the side walls from their flat position to an upstanding positionwhich means folding or bending the said walls on the score or fold lines24 and 26. The end wall extension is then grasped and raised to theposition illustrated in the upper end of Fig. 3 and which means thetearing of the cut and score or perforated lines 56 and 57 to separatethe end walls wall members from the arms 52 and 53 which are securedbelow the side walls and particularly beneath the side walls extendinganges panels 27. lt will be readily understood that the said arms 52 and53 being in a secured position retain the panel 48 or the end wallextension flange panel in its operative position and that the upwardfolding or bending of the end walls takes place on the score or foldline 45.

In erecting the carton both end wall extensions may be torn loose fromthe arms 52 and 53 prior to the erection of either end of the carton, orafter one end wall extension has been released the tucking flaps 35-36and 43-44 are folded from each side wall to be transversely of the mainor bottom panel as illustrated in the upper end of Fig. 3 and with theend wall outer wall member outwardly of the said tucking flaps. In orderthat this is accomplished the said end wall extension is folded to lieoutwardly of the carton as illustrated at the lower end of Fig. 4 priorto the positioning of the ing flaps whereupon the said end wall isarranged to be normal to the bottom panel. The creeper flap 51 is nowfolded to be normal to the inner Wall member and to project outwardly ofthe carton whereupon the inner wall member or panel 50 is folded to beinteriorly of the carton as illustrated by the upper end of Fig. 4. Theparts are lockedv in their erected position by inserting the lockinglugs 58 and 59 of the end wall inner wall member beneath the side wallinner wall member shoulders 41 and 42 and behind the off-set ends ofsaid end walls 39 and 40, or, the said locking lugs 58 and 59 arereceived in locking notches 64, see Fig. 3, formed at the lower cornersof the side wall inner wall members by the said shoulders 41-42 andoff-set ends 39-40.

The same steps are now gone through with respect to the remaining endwall whereupon a completely erected carton part, box, carton, lid, orcover, is provided having a main panel with four walls projectingtherefrom and a flange from each wall in the plane of the main, bottomor top covering panel.

It will be noted that by this construction the extending flange fromeach side of the, carton part is permanently produced and that theflanges of the said extensions definitely and positively mark the linefor the walls and provide means for permanently positioning the foldingline of said walls inwardly of the edges of the main panel.

The foregoing description, as was'noted above, pertains to a cartonhaving double thickness walls while the modification disclosed in Figs.6 to l1, inclusive, discloses a modified carton to the extent that thewallsare of hollow construction and include spaced apart inner and outerWall members. The modifications consist essentially in providing aspacer panel or topI wall member panel in each of the wall extensions aswell as` a slight modification in the wall panels for effecting thelocking of the walls in their erected positions.

Specifically, the modification consists in modifying the side wallextensions 20 and Z1 to the extent of supplying said extensions,respectively, with a panel 65 hingedly connected with the side wallouter wall member or panel 2S through the score or foldv line 25 andhingedly connecting with said panel 65 through a score or fold line 66the side wall inner wall member or panel 29. As will later bespecifically pointed out the end walls are made to a hollow or spacedapart construction thereby further inwardly spacing the end walls innerwall members wherefore the ends of the side walls cannot be convenientlyemployed for locking the walls in erected position and to supply thisomission the said side walls inner wall members 29 are each providednear their outer ends with elongated apertures 67 -and 68; The glue flapor -panel 30' is enlarged to the extent that it not only projectsbeneath the extension flange panel 27 but also projects beneath thehollow space between the side walls inner and outer wall members asclearlyshown in Fig. 10.

A further modification in the blank ofl Fig. 6 consists in hingedlyconnecting tothe side walls inner'wall members tucking flaps 35 and 36?,respectively, through a hinge or fold line 69 and 70 a spacing flap 71and 72. Each of the spacing flaps is, in the main, of a widthsubstantially equal to thewidth of the walls top wall members and areadapted to underlie the top wall members of the end walls. For thepurpose of ornamentation the free edge of the spacing flaps 71 and` 72adjacent the side walls top wall members or panels 65 are, respectively,provided with an outwardly arcuately shaped bulge 73 and 74. As wasnoted the` said bulges 73 and 74 are supplied for ornamentation purposesand may be readily omitted as faras utilitarian purposes in eitherassembling or using the carton is` concerned. Additionally theextensions 20' and 21 are modified by eliminating from the side wallsinner wall members or panels 29 the tucking flaps 43 and 44.

The end wall extensions 22' and 23' are respectively modified by a topwall member or panel 75 which is hingedly connected to the end wallinner wall member or panel 49' by the hinge or fold line 46 with saidtop wall member or panel 75 hingedly connected with the end wall innerwall member panel 50 by a score or fold line 76. The ends of the endwalls outer wall members or panel 49', instead of being formed by astraight cut line 55, are formed by a cut line at each end that isslightly inclined inwardly and contoured or scalloped as at '77 for thepurpose of effecting ornamentation at the ends of the carton as. clearlyrillustrated in Fig. 11. lt should be noted that the contouredcut.77"may take any configuration insofar as contour is. concerned andmay also .be a straight line at an angle tothe longitudinal axis of theblank or may be formed parallel with said blank axis as is the line 55in Fig.' l.

The ends of the end` wall top wallmember or panel 75 is illustrated asan arcuate cut at 7;'8 and V'79 an'd which particular formation is againprimarily for ornamental purposes since the ends of this panel may be astraight cut line either angled or parallel with the longitudinal axisof the blank. By forming the ends of the end wall outer wall member orpanel 49 and top. wall member or panel 75 to be generally at an angle tothe. longitudinal axis of the blank the end wall extension or panel 48has its arms 52 and 53 somewhat wedge shaped, that is, Wider at the endwhere it is integral with the flange or panel 48 than at the free endsthereof which in no wise interferes with the utility of the box orcarton nor with its manufacture and erection.

The blank after being formed is supplied with adhesive and folded asabove described for shipment to the user with the end wall extensions Z2and 23 in the folded secured position of end. wall extension Z3 in Pig.6 and with the side walls extensions folded and secured in the positionof side wall extension 21 in Fig. 6. The user in erecting the cartonfollows the same procedure and steps as above outlined in erecting thecarton of Figs. 1 to 5, inclusive. The erected carton of themodification in Figs. 6 to l1, inclusive, results in the corners of thetop wall members presenting an ornamental appearance to the extent of arounded corner effected by the rounded lugs 73 and 74 from the spacingflaps 71 and 72 and the arcuate cuts at the ends of the end walls topwall members or panels 75. The scalloped cuts '77 of the end walls outerwall members or panels 49 give to the erected carton an ornamental endwall eect as illustrated in Fig. 1l.

It will be noted that in the modification of Figs. 6 to ll, inclusive,the extending flange is secured in position for each wall requiring theuser or erector of the carton to merely set up and lock the side and endwalls in operative positions, a construction not heretofore known.

In view of the foregoing, it is believed now evident that there has beenprovided a carton, box, lid or cover that accomplishes the objectsinitially set forth, and it is to be noted, that while reference inparts of the specification has been made to carton or box it is to beunderstood that this term was used for convenience in description andthat the construction applies with equal force to a lid or cover.

What is claimed is:

l. ln a carton part ofthe class described comprising a main panel,extensions from each edge of said main panel each subdivided by foldlines to provide a carton wall comprising an inner and an outer wallmember, each extension including an extending flange forming panel l0-cated between its outer wall member and the adjacent main panel edgewith said extending flange panel overlying the main panelinwardly of itsedge of the main panel, means on certain of said extending flangeforming panels projecting therefrom at the ends thereof and underlyingthe remaining extending flange forming panels and the walls associatedwith said remaining extending flange forming panels, and means securingthe overlying portions of said extending ilange forming panels to oneanother and to the main panel so that said extensions have their wallmembers articulated to the main panel inwardly of the edges thereof adistance equal to the width of the said extending flange forming panels.

2. In a carton part of the class described comprising a main panel,extensions from each edge of said main panel each subdivided by foldlines to provide a carton wall comprising an inner and an outer wallmember, each extension including an extending flange forming panellocated between its outer wall member and the adjacent main panel edgewith said extending flange panel overlying the main panel inwardly 'ofits edge of the main panel, means on certain of said extending flangepanels projectA ing therefrom at the ends thereof and underlying thercmaining extending flange panels and `the walls associated with saidremaining extending flange forming panels,

means securing -the overlying portions of said extending flange formingpanels to one another and to the main panel so that said extensions havetheir outer wall members articulated to the main panel inwardly of theedges thereof a distance equal to the width of the said extending flangeforming panels, and means for securing the lower ends of certain of saidwalls inner wall members relative to the main panel for articulation sothat said inner wall members along with'their outer wall members areerectable from flat to upstanding positions.

3. In a carton part of the class described comprising a main panel,extensions from each edge of said main panel each subdivided by foldlines to provide a carton wall comprising an inner and an outer wallmember, each extension including an extending flange forming panellocated between its outer wall member and the adjacent main panel edgewith said extending flange panel overlying the main panel inwardly ofits edge of the main panel, means on certain of said extending flangepanels projecting therefrom at the ends thereof and underlying theremaining extending ange panels and the walls associated with saidremaining extending flange forming panels, means securing the overlyingportions of said extending flange forming panels to one another and tothe main panel so that said extensions have their outer wall membersarticulated to the main panel inwardly of the edges thereof a distanceequal to the width of the said extending flange forming panels, meansfor securing the lower ends of the inner wall members of two opposedsaid walls relative to the main panel for articulation relative to saidmain panel, and tucking flaps from the ends of said two opposed wallswhich have their inner and outer wall members articulated relative tothe main panel disposed transversely of the main panel and enfolded bythe inner and outer wall members of the remaining walls.

4. In a carton part of the class described comprising a main panel,extensions from each side of said main panel subdivided to provide wallsat each side of the main panel each comprising an inner and an outerwall member, two opposed extensions each, respectively, including anextending flange forming panel located between its outer wall member andthe adjacent main panel side overlying the main panel inwardly of itsside of the main panel, the remaining opposed extensions each includingan extending flange forming panel between its outer wall member and sideof the main panel overlying the main panel inwardly of its side of themain panel, tongues from the ends of the last mentioned pair of opposedextensions extending flange forming panels projecting normal thereto tobe inwardly of their walls and underlying the extending flange formingpanels of the first mentioned pair of opposed wall extensions, meanssecuring the extending flanges forming panels of the first pair ofopposed wall extensions and the extending flanges Vforming panelstongues of the second pair of wall forming extensions to one another andto the main panel so that said extending tlanges forming panels arepermanently secured in position with the walls inner and outer wallmembers articulated to the main panel for flat folding and erectionnormal to the main panel, and means for locking the walls in erectedpositions.

5. ln a carton part of the class described comprising a main panel,extensions from each side of said main panel subdivided to provide wallsat each side of the main panel each comprising an inner and an outerwall member, two opposed extensions each, respectively, including anextending flange forming panel located between its outer wall member andthe adjacent main panel side overlying the main panel inwardly of itsside of the main panel, the remaining opposed extensions each includingan extending flange forming panel between its outer wall member and sideof the main panel overlying the main panel inwardly of its side of themain panel, tongues from the ends of the last mentioned pair of opposedextensions extending llange forming panels projecting normal thereto tobe inwardly of their walls and underlying the extending flange formingpanels of the first mentioned pair of opposed wall extensions, meanssecuring the extending flanges forming panels of the first pair ofopposed wall extensions and the extending flanges forming panels tonguesof the second pair of wall forming extensions to one another and to themain panel so that said extending flanges forming panels are permanentlysecured in position with the walls inner and outer wall membersarticulated to the main panel for flat folding and erection normal tothe main panel, and means for locking the walls in erected positions,comprising tucking flaps from the ends of two opposed walls enfoldedbetween the inner and outer wall members of the two remaining opposedwalls.

6. In a carton part of the class described comprising a main panel,extensions from each side of said main panel subdivided to provide wallsat each side of the main panel each comprising an inner and an outerwall member, two opposed extensions each, respectively, including anextending flange forming panel located between its outer wall member andthe adjacent main panel side overlying the main panel inwardly of itsside of the main panel, the remaining opposed extensions each includingan extending flange forming panel between its outer wall member and sideof the main panel overlying the main panel inwardly of its side of themain panel, tongues from the ends of the last mentioned pair of opposedextending llange forming panels projecting normal thereto to be inwardlyof their walls and underlying the extending flange forming panels of thefirst pair of opposed wall extensions, each extension forming the firstmentioned opposed walls, respectively, having a flap at the lower end ofits inner wall member disposed between its extending flange formingpanel and the tongues, means securing the extending flanges formingpanels and flaps of the inner wall members of the first pair of opposedwall forming extensions and the extending anges forming panels tonguesof the second pair of wall forming extensions to one another and to themain panel so that said extending flanges forming panels are permanentlysecured in position with the walls inner and outer wall members of thefirst mentioned two opposed extensions and the outer wall members of thelast mentioned pair of opposed extensions articulated to the main panelfor flat folding and erection normal to the main panel, and meanslocking the walls in erected positions.

7. In a carton part of the class described comprising a main panel,extensions from each side of said main panel subdivided to provide wallsat each side of the main panel each comprising an inner and an outerwall member, two opposed extensions each, respectively, including anextending flange forming panel located between its outer wall member andthe adjacent main panel side overlying the main panel inwardly of itsside of the main panel, the remaining opposed extensions each includingan extending flange forming panel between its outer wall member and sideof the main panel overlying the main panel inwardly of its side of themain panel, tongues from the ends of the last mentioned pair of opposedextending flange forming panels projecting normal thereto to be inwardlyof their walls and underlying the extending flange forming panels of thefirst pair of opposed wall extensions, each extension forming the firstmentioned opposed walls, respectively, having a flap at the lower end ofits inner wall member disposed between its extending flange formingpanel and the tongues, means securing the extending flanges formingpanels and flaps of the inner wall members of the first pair of opposedwall forming extensions and the extending flanges forming panels tonguesof the second pair of wall forming extensions to one another and to themain panel so that said extending flanges forming panels are permanentlysecured in position with the walls inner and outer wall members of thefirst mentioned two opposed extensions and the outer wall members of thelast mentioned pair of opposed extensions 9 articulated to the mainpanel for flat folding and erection normal to the main panel, and meanslocking the walls in erected positions, comprisingtucking ilaps from theends of the iirst mentioned twoopposed 'walls envfolded between theinner and outer wall members of the last mentioned opposed walls.

8. In a carton of the class described comprising a main panel,extensions from each edge of said main panel each subdivided by foldlines to provide a carton wall comprising an inner and an outer wallmember, each extension including an extending flangey formingv panellocated between its outer wall member and the adjacent main panel edgewith said extending flange panel overlying the main panel inwardly ofits edge of the main panel, at least two opposed extensions each,respectively, including a` top wall member for spacing its inner andouter wall members from one'another and a securing lap at the lower endof its inner wall member for articulating the said inner wall memberrelative to the bottom, means on certain of said extending flangeforming panels projecting therefrom at the ends thereof underlying theremaining extending llange forming panels and the walls associated withsaid remaining extending ange forming panels, and means securing theoverlying portions of said extending flange Jforming panels to oneanother and to the main panel so that said extensions-have their outerwall members articulated to the main panelinwardly of the edges thereofa distance equal to the width of the said extending flange formingpanels.

9. In a carton part of the class described comprising a main panel,extensions from each edge of said main panel each subdivided by foldlines to provide a carton wall comprising an inner and an outer wallmember, each extension including an extending flange forming panellocated between its outer wall member and the adjacent main panel edgewith said extending flange panel overlying the main panel inwardly ofits edge of the main panel, at least two opposed extensions each,respectively, including a top wall member for spacing its inner andouter wall members from one another and a securing ap at the lower endof its inner wall member for articulating the said inner wall memberrelative to the bottom, means on certain of said extending flangeforming panels projecting therefrom at the ends thereof underlying theremaining extending ilange forming panels and the walls associated withsaid remaining extending flange forming panels, means securing theoverlying portions of said extending flange forming panels to oneanother and to the main panel so that said extensions have their outerwall members articulated to the main panel inwardly of the edges thereofa distance equal to the width of the said extending flange formingpanels, and tucking llaps from the ends of said two opposed walls whichhave their inner and outer wall members articulated relative to the mainpanel for disposition transversely of the main panel and enfolded by theinner and outer wall members of the remaining walls.

l0. ln a carton part of the class described comprising a main panel,extensions from each side of said main panel subdivided to provide wallsat each side of the main panel each comprising an inner and an outerwall member, two opposed extensions, respectively, including anextending llange forming panel located between its outer wall member andthe adjacent main panel side overlying the main panel inwardly of itsside of the main panel, said extensions each, respectively, including atop wall member for spacing its inner and outer Wall members from oneanother and a securing flap at the lower end of its inner wall member,the remaining opposed extensions each including an extending llangeforming panel between its outer wall member and side of the main paneloverlying the main panel inwardly of its side of the main panel, tonguesfrom the ends of the last mentioned pair of opposed wall extensionsextending flange forming panels projecting normal thereto tobe inwardlyof their Walls andunderlying the extending flange forming panels of thefirst mentioned pair of. opposed wall extensions, said securing flaps ofthe inner wall members of the irst mentioned two opposed extensions,respectively, being disposed between its extending flange forming paneland the tongues, means securing the extending flanges forming panels andthe securing llaps of the inner wall members of the rst pair of opposedwall extensions and the extending flanges forming panel tongues of thesecond pair of wall forming extensions to one another and to the mainpanel so that said extending llanges forming panels are permanentlysecured inv position with the inner and outer wall members of the rstmentioned two opposed wall extensions and the outer wall member of thelast mentioned two opposed wall members are articulated to the mainpanel for flat folding and erection normal to the main panel, and meanslocking the walls in erected positions.

11. In acarton part of the class described comprising a main panel,extensions from each side of said main panel subdivided to provide wallsat each side of the main panel each comprising an inner and an outerwall member, Itwo opposed extensions, respectively, including anextending flange forming panel located between its outer wall member andthe adjacent main panel side overlying the main panel inwardly of itsside of the main panel, said extensions each, respectively, including atop wall member for spacing its inner and outer wall members from oneanother and a securing llap at the lower end of its innerwall member,-the remaining opposed extensions each including an extending llangeforming panel between its outer wall member and side of the main paneloverlying the main panel inwardly of its side of the main panel, tonguesfrom the ends of the last mentioned pair of opposed wall extensionsextending flange forming panels projecting normal thereto to be inwardlyof their walls and underlying the extending flanges forming panels ofthe rst mentioned pair of opposed wall extensions, said securing flapsof the inner wall members of the rst mentioned two opposed extensions,respectively, being disposed between its extending llange forming paneland the tongues, means securing the extending llanges forming panels andthe securing llaps of the inner wall members of the first pair ofopposed wall extensions and the extending flanges forming panel tonguesof the second pair of wall forming extensions to one another and tothemain panel so that said extending flanges forming panels are permanentlysecured in position with the inner and outer wall members of the firstmentioned two opposed wall extensions and the outer wall member of thelast mentioned two opposed wall members are articulated to the mainpanel for llat folding and erection normal to the main panel, and meanslocking the walls in erected positions, comprising tucking flaps fromthe ends of two opposed walls enfolded between lthe inner and outer Wallmembers of the two remaining opposed walls.

12. An end wall construction for a knocked-down carton to provide anextension llange comprising a main panel, an extension from an edge ofsaid main panel integrally, hingedly, connected thereto and subdividedby fold lines to form an outer and an inner wall member with anextending ange forming panel between the outer wall member and mainpanel, tongues from the ends of the extending flange forming panelflanking the inner and outer wall member, and means securing the tonguesto the main panel for securing the extending ilange forming panel inoverlying position on the main panel inwardly of the hinge connection ofthe extension thereto.

13. A end wall construction for a knocked-d-own cart-on to provide anextension llange comprising a main panel, an extension from an edge ofsaid main panel integrally, hingedly, connected thereto and subdividedby fold lines to form an outer and an inner wall member with anextending tlange forming panel between the outer wall member and mainpanel, tongues from the ends of the extending ange forming panelflanking the inner and outer wall member, and means securing the tonguesto the main panel for securing the extending flange forming panel inoverlying position on the main panel inwardly of the hinge connection ofthe extension thereto, said tongues being connected with one of theinner and outer wall members by a weakened line whereby a separation ofsaid wall member may be effected by tearing along the weakenedconnecting line.

14. A carton part of the class described adapted to be shipped to theuser in knocked-down position wherein the carton comprises a main panel,side Walls each, respectively, integrally, hingedly, connected to a sideof the main panel inwardly of its adjacent edge of the main panel, aflange forming panel overlapping the main panel between each side walland its adjacent edge of the main panel secured in position over themain panel, end walls inwardly of each end of the main panel, a angeforming panel between each end wall and its adjacent edge of the mainpanel, tongues from the ends of each end Wall ange projecting normalthereto to be inwardly of its wall and underlying the side walls llangesand secured in position, and means temporarily securing each end walland its end wall flange forming panel tongues to one another while thecarton is in its knocked-down condition and which is readily separablefor separating the end wall from its ange forming panel tongues forerection.

l5. A carton part of the class described adapted to be shipped to theuser in knocked-down position wherein the carton comprises a main panel,side walls each, respectively, integrally, hingedly connected to a sideof the main panel inwardly of its adjacent edge of the main panel, aflange forming panel overlapping the main panel between each side walland its adjacent edge of the main panel secured in position over themain panel, end walls inwardly of each end of the main panel, a flangeforming panel between each end wall and its adjacent edge of the mainpanel, tongues from the ends of each end wall flange projecting normalthereto to be inwardly of its walls and underlying the side wallsflanges and secured in position, and means temporarily securing each endwall and its end Wall flange forming panel tongues to one another whilethe carton is in its knocked-down condition and which is readilyseparable for separating the end wall from its flange forming paneltongues for erection, comprising a weakened line of demarkation betweenthe end wall and its end wall extending flange securing tongues.

References Cited in the le of this patent UNITED STATES PATENTS Re.21,158 Frankenstein July 25, 1939 895,508 Smith Aug. ll, 1908 2,144,646Zalkind Jan. 24, 1939 2,354,369 Gilbert July 25, 1944 2,388,243 ArnesonNov. 6, 1945 2,514,384 Frankenstein July 11, 1950 2,597,289 Caskey May20, 1952 FOREIGN PATENTS 767,323 France Ian. 19, 1934

